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Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVE-2020-14366

High
7.5/10

Summary

A vulnerability was found in keycloak on versions prior to 11.0.3, where path traversal using URL-encoded path segments in the request is possible because the resources endpoint applies a transformation of the url path to the file path. Only few specific folder hierarchies can be exposed by this flaw

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-22 - Path Traversal

Path traversal (or directory traversal), is a vulnerability that allows malicious users to traverse the server's root directory, gaining access to arbitrary files and folders such as application code & data, back-end credentials, and sensitive operating system files. In the worst-case scenario, an attacker could potentially execute arbitrary files on the server, resulting in a denial of service attack. Such an exploit may severely impact the integrity, confidentiality, and availability of an application.

References

Advisory Timeline

  • Published